元素

标准值

测得值

均值

极差R

最大残差ER

U95

Mn

0.69

0.70,0.67,0.71,0.69,0.68,

0.69,0.71,0.67,0.70,0.71

0.69

0.04

0.03

0.008

Si

0.26

0.26,0.26,0.26,0.26,0.25,

0.27,0.27,0.28,0.28,0.27

0.27

0.03

0.02

0.006

P

0.024

0.021,0.025,0.025,0.024,0.024,

0.025,0.024,0.023,0.025,0.027

0.024

0.006

0.004

0.001